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| author | Ma Ke <make_ruc2021@163.com> | 2023-10-09 04:13:37 +0300 |
|---|---|---|
| committer | Steffen Klassert <steffen.klassert@secunet.com> | 2023-10-10 10:55:35 +0300 |
| commit | 513f61e2193350c7a345da98559b80f61aec4fa6 (patch) | |
| tree | 9d35fbb3a04e6fa0028674b84482c50cae2bb90a /net/ipv4/esp4.c | |
| parent | dad4e491e30b20f4dc615c9da65d2142d703b5c2 (diff) | |
| download | linux-513f61e2193350c7a345da98559b80f61aec4fa6.tar.xz | |
net: ipv4: fix return value check in esp_remove_trailer
In esp_remove_trailer(), to avoid an unexpected result returned by
pskb_trim, we should check the return value of pskb_trim().
Signed-off-by: Ma Ke <make_ruc2021@163.com>
Signed-off-by: Steffen Klassert <steffen.klassert@secunet.com>
Diffstat (limited to 'net/ipv4/esp4.c')
| -rw-r--r-- | net/ipv4/esp4.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/ipv4/esp4.c b/net/ipv4/esp4.c index 2be2d4922557..d18f0f092fe7 100644 --- a/net/ipv4/esp4.c +++ b/net/ipv4/esp4.c @@ -732,7 +732,9 @@ static inline int esp_remove_trailer(struct sk_buff *skb) skb->csum = csum_block_sub(skb->csum, csumdiff, skb->len - trimlen); } - pskb_trim(skb, skb->len - trimlen); + ret = pskb_trim(skb, skb->len - trimlen); + if (unlikely(ret)) + return ret; ret = nexthdr[1]; |